CAT5411: Digital Potentiometer (POT), Dual 64-Tap, with SPI Interface

The CAT5411 is two digital POTs integrated with control logic and 16 bytes of NVRAM memory. Each digital POT consists of a series of 63 resistive elements connected between two externally accessible end points. The tap points between each resistive element are connected to the wiper outputs with CMOS switches. A separate 6-bit control register (WCR) independently controls the wiper tap switches for each digital POT. Associated with each wiper control register are four 6-bit non-volatile memory data registers (DR) used for storing up to four wiper settings. Writing to the wiper control register or any of the non-volatile data registers is via a SPI serial bus. On power-up, the contents of the first data register (DR0) for each of the two potentiometers is automatically loaded into its respective wiper control register.The CAT5411 can be used as a potentiometer or as a two terminal, variable resistor. It is intended for circuit level or system level adjustments in a wide variety of applications.

Features
  • Two linear-taper digital potentiometers
  • 64 resistor taps per potentiometer
  • End to end resistance 2.5 kΩ, 10 kΩ, 50 kΩ or 100 kΩ
  • Potentiometer control and memory access via SPI interface: Mode (0, 0) and (1, 1)
  • Low wiper resistance, typically 80 Ω
  • Nonvolatile memory storage for up to four wiper settings for each potentiometer
  • Automatic recall of saved wiper settings at power up
  • 2.5 to 6.0 volt operation
  • Standby current less than 1 µA
  • Industrial temperature ranges
Applications
  • Audio Equipment
  • Industrial Controls
End Products
  • Automobiles
  • Industrial Equipment
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Digital Potentiometer (POT), Dual 64-Tap, with SPI InterfaceCAT5411/D (201.0kB)13
Package Drawings (2)
Document TitleDocument ID/SizeRevision
SOIC-24, 300 mils751BK (57.1kB)revo
TSSOP24, 4.4x7.8948AR (56.4kB)A
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
CAT5411WI-00-T1Last ShipmentsPb-free Halide freeSOIC-24W751BK3Tape and Reel1000
CAT5411WI-10-T1Last ShipmentsPb-free Halide freeSOIC-24W751BK3Tape and Reel1000
CAT5411WI-25-T1Last ShipmentsPb-free Halide freeSOIC-24W751BK3Tape and Reel1000
CAT5411WI-50-T1Last ShipmentsPb-free Halide freeSOIC-24W751BK3Tape and Reel1000
CAT5411WI00Last ShipmentsPb-free Halide freeSOIC-24W751BK3Tube31
CAT5411WI10Last ShipmentsPb-free Halide freeSOIC-24W751BK3Tube31
CAT5411WI25Last ShipmentsPb-free Halide freeSOIC-24W751BK3Tube31
CAT5411WI50Last ShipmentsPb-free Halide freeSOIC-24W751BK3Tube31
CAT5411YI-00-T2ActivePb-free Halide freeTSSOP-24948AR1Tape and Reel2000$3.7332
CAT5411YI-10-T2ActivePb-free Halide freeTSSOP-24948AR1Tape and Reel2000$3.7332
CAT5411YI-25-T2ActivePb-free Halide freeTSSOP-24948AR1Tape and Reel2000$3.7332
CAT5411YI-50-T2ActivePb-free Halide freeTSSOP-24948AR1Tape and Reel2000$3.7332
CAT5411YI00ActivePb-free Halide freeTSSOP-24948AR1Tube62$33.3325
CAT5411YI10ActivePb-free Halide freeTSSOP-24948AR1Tube62$33.3325
CAT5411YI25ActivePb-free Halide freeTSSOP-24948AR1Tube62$33.3325
CAT5411YI50ActivePb-free Halide freeTSSOP-24948AR1Tube62$33.3325
Specifications
Product# of Pots# of TapsTypeControl InterfaceResistance Typ (kΩ)VH Max (V)Wiper Position MemoryVDD Max (V)
CAT5411YI-00-T2264PotentiometerSPI100VCCYes6
CAT5411YI-10-T2264PotentiometerSPI10VCCYes6
CAT5411YI-25-T2264PotentiometerSPI2.5VCCYes6
CAT5411YI-50-T2264PotentiometerSPI50VCCYes6
CAT5411YI00264PotentiometerSPI100VCCYes6
CAT5411YI10264PotentiometerSPI10VCCYes6
CAT5411YI25264PotentiometerSPI2.5VCCYes6
CAT5411YI50264PotentiometerSPI50VCCYes6
Digital Potentiometer (POT), Dual 64-Tap, with SPI Interface (201.0kB) CAT5411
SOIC-24, 300 mils CAT9555
TSSOP24, 4.4x7.8 CAT9555